New Tier 4-Interim, 354-horsepower diesel on the DL420 wheel loader uses SCR and DEF and increases fuel efficiency by as much as 16 percent over its predecessor. Auto-idle features lessens noice and saves fuel by idlings down to 750 rpm when inactive for 10 minutes. The 5.5-cubic-yard loader has a breakout force of 47,210 pounds; and full-turn tipping capacity of 35,310 pounds. Operators can set upper and lower limits for both the lift arm and bucket stop positions.